title: Sonographic diagnosis of biliary ascariasis.
abstract: In an 11.5-year-old boy with obstructive jaundice sonography revealed a worm-like structure within the dilated biliary tree. Cross-section showed a bull's eye configuration, whereas longitudinal planes demonstrated an echogenic strip with a central longitudinal anechogenic tube. Diagnosis of ascariasis was established by identification of ascarid eggs in the stool. After anthelminthic treatment several ascarid worms were excreted with the stool.
authors.affiliation: Paediatric Hospital, University of Erlangen-Nürnberg, Federal Republic of Germany.
authors.forename: K H
authors.initials: KH
authors.lastname: Deeg
mesh_terms: D001196:Ascariasis / Q000150:complications / Q000000981:diagnostic imaging*; D001659:Biliary Tract / Q000000981:diagnostic imaging; D001660:Biliary Tract Diseases / Q000000981:diagnostic imaging*; D002648:Child; D002779:Cholestasis / Q000209:etiology; D006801:Humans; D008099:Liver / Q000000981:diagnostic imaging; D008297:Male; D014463:Ultrasonography